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dreamsllno.1

新虫 (初入文坛)

[求助] 用液相色谱测定6-APA 已有1人参与

有文献显示在0.1mol/l磷酸盐缓冲液:乙腈=80:20,稀释液为pH=5.5的磷酸盐缓冲液,流速为1.0mL/min,检测波长为224 nm,进样量
为2O L,柱温为35的条件下,6-APA的出峰时间在2分多钟,这个出峰时间是不是太早了啊?我改怎么修正下条件。柱子是C18的。
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zldchy

铜虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
这应该是反相色谱。想要出峰晚,把有机溶剂比例调低,或者直接降柱温或流速。但是得注意峰形别太差了

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2楼2015-12-24 17:15:26
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